1 | import process from 'node:process';
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2 | import stringWidth from 'string-width';
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3 | import chalk from 'chalk';
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4 | import widestLine from 'widest-line';
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5 | import cliBoxes from 'cli-boxes';
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6 | import camelCase from 'camelcase';
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7 | import ansiAlign from 'ansi-align';
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8 | import wrapAnsi from 'wrap-ansi';
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9 |
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10 | const NEWLINE = '\n';
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11 | const PAD = ' ';
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12 | const NONE = 'none';
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13 |
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14 | const terminalColumns = () => {
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15 | const {env, stdout, stderr} = process;
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16 |
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17 | if (stdout?.columns) {
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18 | return stdout.columns;
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19 | }
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20 |
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21 | if (stderr?.columns) {
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22 | return stderr.columns;
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23 | }
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24 |
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25 | if (env.COLUMNS) {
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26 | return Number.parseInt(env.COLUMNS, 10);
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27 | }
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28 |
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29 | return 80;
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30 | };
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31 |
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32 | const getObject = detail => typeof detail === 'number' ? {
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33 | top: detail,
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34 | right: detail * 3,
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35 | bottom: detail,
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36 | left: detail * 3,
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37 | } : {
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38 | top: 0,
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39 | right: 0,
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40 | bottom: 0,
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41 | left: 0,
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42 | ...detail,
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43 | };
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44 |
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45 | const getBorderWidth = borderStyle => borderStyle === NONE ? 0 : 2;
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46 |
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47 | const getBorderChars = borderStyle => {
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48 | const sides = [
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49 | 'topLeft',
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50 | 'topRight',
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51 | 'bottomRight',
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52 | 'bottomLeft',
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53 | 'left',
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54 | 'right',
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55 | 'top',
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56 | 'bottom',
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57 | ];
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58 |
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59 | let characters;
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60 |
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61 |
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62 | if (borderStyle === NONE) {
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63 | borderStyle = {};
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64 | for (const side of sides) {
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65 | borderStyle[side] = '';
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66 | }
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67 | }
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68 |
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69 | if (typeof borderStyle === 'string') {
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70 | characters = cliBoxes[borderStyle];
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71 |
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72 | if (!characters) {
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73 | throw new TypeError(`Invalid border style: ${borderStyle}`);
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74 | }
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75 | } else {
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76 |
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77 | if (typeof borderStyle?.vertical === 'string') {
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78 | borderStyle.left = borderStyle.vertical;
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79 | borderStyle.right = borderStyle.vertical;
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80 | }
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81 |
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82 |
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83 | if (typeof borderStyle?.horizontal === 'string') {
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84 | borderStyle.top = borderStyle.horizontal;
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85 | borderStyle.bottom = borderStyle.horizontal;
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86 | }
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87 |
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88 | for (const side of sides) {
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89 | if (borderStyle[side] === null || typeof borderStyle[side] !== 'string') {
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90 | throw new TypeError(`Invalid border style: ${side}`);
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91 | }
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92 | }
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93 |
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94 | characters = borderStyle;
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95 | }
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96 |
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97 | return characters;
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98 | };
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99 |
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100 | const makeTitle = (text, horizontal, alignment) => {
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101 | let title = '';
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102 |
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103 | const textWidth = stringWidth(text);
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104 |
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105 | switch (alignment) {
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106 | case 'left': {
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107 | title = text + horizontal.slice(textWidth);
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108 | break;
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109 | }
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110 |
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111 | case 'right': {
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112 | title = horizontal.slice(textWidth) + text;
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113 | break;
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114 | }
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115 |
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116 | default: {
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117 | horizontal = horizontal.slice(textWidth);
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118 |
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119 | if (horizontal.length % 2 === 1) {
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120 | horizontal = horizontal.slice(Math.floor(horizontal.length / 2));
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121 | title = horizontal.slice(1) + text + horizontal;
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122 | } else {
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123 | horizontal = horizontal.slice(horizontal.length / 2);
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124 | title = horizontal + text + horizontal;
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125 | }
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126 |
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127 | break;
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128 | }
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129 | }
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130 |
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131 | return title;
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132 | };
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133 |
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134 | const makeContentText = (text, {padding, width, textAlignment, height}) => {
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135 | text = ansiAlign(text, {align: textAlignment});
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136 | let lines = text.split(NEWLINE);
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137 | const textWidth = widestLine(text);
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138 |
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139 | const max = width - padding.left - padding.right;
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140 |
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141 | if (textWidth > max) {
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142 | const newLines = [];
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143 | for (const line of lines) {
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144 | const createdLines = wrapAnsi(line, max, {hard: true});
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145 | const alignedLines = ansiAlign(createdLines, {align: textAlignment});
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146 | const alignedLinesArray = alignedLines.split('\n');
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147 | const longestLength = Math.max(...alignedLinesArray.map(s => stringWidth(s)));
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148 |
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149 | for (const alignedLine of alignedLinesArray) {
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150 | let paddedLine;
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151 | switch (textAlignment) {
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152 | case 'center': {
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153 | paddedLine = PAD.repeat((max - longestLength) / 2) + alignedLine;
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154 | break;
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155 | }
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156 |
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157 | case 'right': {
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158 | paddedLine = PAD.repeat(max - longestLength) + alignedLine;
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159 | break;
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160 | }
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161 |
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162 | default: {
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163 | paddedLine = alignedLine;
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164 | break;
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165 | }
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166 | }
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167 |
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168 | newLines.push(paddedLine);
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169 | }
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170 | }
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171 |
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172 | lines = newLines;
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173 | }
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174 |
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175 | if (textAlignment === 'center' && textWidth < max) {
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176 | lines = lines.map(line => PAD.repeat((max - textWidth) / 2) + line);
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177 | } else if (textAlignment === 'right' && textWidth < max) {
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178 | lines = lines.map(line => PAD.repeat(max - textWidth) + line);
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179 | }
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180 |
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181 | const paddingLeft = PAD.repeat(padding.left);
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182 | const paddingRight = PAD.repeat(padding.right);
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183 |
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184 | lines = lines.map(line => paddingLeft + line + paddingRight);
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185 |
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186 | lines = lines.map(line => {
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187 | if (width - stringWidth(line) > 0) {
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188 | switch (textAlignment) {
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189 | case 'center': {
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190 | return line + PAD.repeat(width - stringWidth(line));
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191 | }
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192 |
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193 | case 'right': {
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194 | return line + PAD.repeat(width - stringWidth(line));
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195 | }
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196 |
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197 | default: {
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198 | return line + PAD.repeat(width - stringWidth(line));
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199 | }
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200 | }
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201 | }
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202 |
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203 | return line;
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204 | });
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205 |
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206 | if (padding.top > 0) {
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207 | lines = [...Array.from({length: padding.top}).fill(PAD.repeat(width)), ...lines];
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208 | }
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209 |
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210 | if (padding.bottom > 0) {
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211 | lines = [...lines, ...Array.from({length: padding.bottom}).fill(PAD.repeat(width))];
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212 | }
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213 |
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214 | if (height && lines.length > height) {
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215 | lines = lines.slice(0, height);
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216 | } else if (height && lines.length < height) {
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217 | lines = [...lines, ...Array.from({length: height - lines.length}).fill(PAD.repeat(width))];
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218 | }
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219 |
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220 | return lines.join(NEWLINE);
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221 | };
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222 |
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223 | const boxContent = (content, contentWidth, options) => {
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224 | const colorizeBorder = border => {
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225 | const newBorder = options.borderColor ? getColorFn(options.borderColor)(border) : border;
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226 | return options.dimBorder ? chalk.dim(newBorder) : newBorder;
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227 | };
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228 |
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229 | const colorizeContent = content => options.backgroundColor ? getBGColorFn(options.backgroundColor)(content) : content;
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230 |
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231 | const chars = getBorderChars(options.borderStyle);
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232 | const columns = terminalColumns();
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233 | let marginLeft = PAD.repeat(options.margin.left);
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234 |
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235 | if (options.float === 'center') {
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236 | const marginWidth = Math.max((columns - contentWidth - getBorderWidth(options.borderStyle)) / 2, 0);
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237 | marginLeft = PAD.repeat(marginWidth);
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238 | } else if (options.float === 'right') {
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239 | const marginWidth = Math.max(columns - contentWidth - options.margin.right - getBorderWidth(options.borderStyle), 0);
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240 | marginLeft = PAD.repeat(marginWidth);
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241 | }
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242 |
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243 | let result = '';
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244 |
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245 | if (options.margin.top) {
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246 | result += NEWLINE.repeat(options.margin.top);
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247 | }
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248 |
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249 | if (options.borderStyle !== NONE || options.title) {
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250 | result += colorizeBorder(marginLeft + chars.topLeft + (options.title ? makeTitle(options.title, chars.top.repeat(contentWidth), options.titleAlignment) : chars.top.repeat(contentWidth)) + chars.topRight) + NEWLINE;
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251 | }
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252 |
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253 | const lines = content.split(NEWLINE);
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254 |
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255 | result += lines.map(line => marginLeft + colorizeBorder(chars.left) + colorizeContent(line) + colorizeBorder(chars.right)).join(NEWLINE);
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256 |
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257 | if (options.borderStyle !== NONE) {
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258 | result += NEWLINE + colorizeBorder(marginLeft + chars.bottomLeft + chars.bottom.repeat(contentWidth) + chars.bottomRight);
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259 | }
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260 |
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261 | if (options.margin.bottom) {
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262 | result += NEWLINE.repeat(options.margin.bottom);
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263 | }
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264 |
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265 | return result;
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266 | };
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267 |
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268 | const sanitizeOptions = options => {
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269 |
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270 | if (options.fullscreen && process?.stdout) {
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271 | let newDimensions = [process.stdout.columns, process.stdout.rows];
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272 |
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273 | if (typeof options.fullscreen === 'function') {
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274 | newDimensions = options.fullscreen(...newDimensions);
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275 | }
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276 |
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277 | if (!options.width) {
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278 | options.width = newDimensions[0];
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279 | }
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280 |
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281 | if (!options.height) {
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282 | options.height = newDimensions[1];
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283 | }
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284 | }
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285 |
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286 |
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287 | if (options.width) {
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288 | options.width = Math.max(1, options.width - getBorderWidth(options.borderStyle));
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289 | }
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290 |
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291 |
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292 | if (options.height) {
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293 | options.height = Math.max(1, options.height - getBorderWidth(options.borderStyle));
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294 | }
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295 |
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296 | return options;
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297 | };
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298 |
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299 | const formatTitle = (title, borderStyle) => borderStyle === NONE ? title : ` ${title} `;
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300 |
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301 | const determineDimensions = (text, options) => {
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302 | options = sanitizeOptions(options);
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303 | const widthOverride = options.width !== undefined;
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304 | const columns = terminalColumns();
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305 | const borderWidth = getBorderWidth(options.borderStyle);
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306 | const maxWidth = columns - options.margin.left - options.margin.right - borderWidth;
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307 |
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308 | const widest = widestLine(wrapAnsi(text, columns - borderWidth, {hard: true, trim: false})) + options.padding.left + options.padding.right;
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309 |
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310 |
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311 | if (options.title && widthOverride) {
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312 | options.title = options.title.slice(0, Math.max(0, options.width - 2));
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313 | if (options.title) {
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314 | options.title = formatTitle(options.title, options.borderStyle);
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315 | }
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316 | } else if (options.title) {
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317 | options.title = options.title.slice(0, Math.max(0, maxWidth - 2));
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318 |
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319 |
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320 | if (options.title) {
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321 | options.title = formatTitle(options.title, options.borderStyle);
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322 |
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323 | if (stringWidth(options.title) > widest) {
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324 | options.width = stringWidth(options.title);
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325 | }
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326 | }
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327 | }
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328 |
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329 |
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330 | options.width = options.width ? options.width : widest;
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331 |
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332 | if (!widthOverride) {
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333 | if ((options.margin.left && options.margin.right) && options.width > maxWidth) {
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334 |
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335 | const spaceForMargins = columns - options.width - borderWidth;
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336 |
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337 | const multiplier = spaceForMargins / (options.margin.left + options.margin.right);
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338 |
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339 | options.margin.left = Math.max(0, Math.floor(options.margin.left * multiplier));
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340 | options.margin.right = Math.max(0, Math.floor(options.margin.right * multiplier));
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341 |
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342 |
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343 | }
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344 |
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345 |
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346 | options.width = Math.min(options.width, columns - borderWidth - options.margin.left - options.margin.right);
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347 | }
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348 |
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349 |
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350 | if (options.width - (options.padding.left + options.padding.right) <= 0) {
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351 | options.padding.left = 0;
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352 | options.padding.right = 0;
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353 | }
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354 |
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355 | if (options.height && options.height - (options.padding.top + options.padding.bottom) <= 0) {
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356 | options.padding.top = 0;
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357 | options.padding.bottom = 0;
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358 | }
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359 |
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360 | return options;
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361 | };
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362 |
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363 | const isHex = color => color.match(/^#(?:[0-f]{3}){1,2}$/i);
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364 | const isColorValid = color => typeof color === 'string' && (chalk[color] ?? isHex(color));
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365 | const getColorFn = color => isHex(color) ? chalk.hex(color) : chalk[color];
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366 | const getBGColorFn = color => isHex(color) ? chalk.bgHex(color) : chalk[camelCase(['bg', color])];
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367 |
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368 | export default function boxen(text, options) {
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369 | options = {
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370 | padding: 0,
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371 | borderStyle: 'single',
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372 | dimBorder: false,
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373 | textAlignment: 'left',
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374 | float: 'left',
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375 | titleAlignment: 'left',
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376 | ...options,
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377 | };
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378 |
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379 |
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380 | if (options.align) {
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381 | options.textAlignment = options.align;
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382 | }
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383 |
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384 | if (options.borderColor && !isColorValid(options.borderColor)) {
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385 | throw new Error(`${options.borderColor} is not a valid borderColor`);
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386 | }
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387 |
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388 | if (options.backgroundColor && !isColorValid(options.backgroundColor)) {
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389 | throw new Error(`${options.backgroundColor} is not a valid backgroundColor`);
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390 | }
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391 |
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392 | options.padding = getObject(options.padding);
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393 | options.margin = getObject(options.margin);
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394 |
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395 | options = determineDimensions(text, options);
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396 |
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397 | text = makeContentText(text, options);
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398 |
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399 | return boxContent(text, options.width, options);
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400 | }
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401 |
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402 | export {default as _borderStyles} from 'cli-boxes';
|