1<?php 2 3/** 4 * webtrees: online genealogy 5 * Copyright (C) 2021 webtrees development team 6 * This program is free software: you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation, either version 3 of the License, or 9 * (at your option) any later version. 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * You should have received a copy of the GNU General Public License 15 * along with this program. If not, see <https://www.gnu.org/licenses/>. 16 */ 17 18declare(strict_types=1); 19 20namespace Fisharebest\Webtrees\Module\InteractiveTree; 21 22use Fisharebest\Webtrees\Family; 23use Fisharebest\Webtrees\Gedcom; 24use Fisharebest\Webtrees\I18N; 25use Fisharebest\Webtrees\Individual; 26use Fisharebest\Webtrees\Registry; 27use Fisharebest\Webtrees\Tree; 28use Illuminate\Support\Collection; 29 30use const JSON_THROW_ON_ERROR; 31 32/** 33 * Class TreeView 34 */ 35class TreeView 36{ 37 // HTML element name 38 private string $name; 39 40 /** 41 * Treeview Constructor 42 * 43 * @param string $name the name of the TreeView object’s instance 44 */ 45 public function __construct(string $name = 'tree') 46 { 47 $this->name = $name; 48 } 49 50 /** 51 * Draw the viewport which creates the draggable/zoomable framework 52 * Size is set by the container, as the viewport can scale itself automatically 53 * 54 * @param Individual $individual Draw the chart for this individual 55 * @param int $generations number of generations to draw 56 * 57 * @return array<string> HTML and Javascript 58 */ 59 public function drawViewport(Individual $individual, int $generations): array 60 { 61 $html = view('modules/interactive-tree/chart', [ 62 'module' => 'tree', 63 'name' => $this->name, 64 'individual' => $this->drawPerson($individual, $generations, 0, null, '', true), 65 'tree' => $individual->tree(), 66 ]); 67 68 return [ 69 $html, 70 'var ' . $this->name . 'Handler = new TreeViewHandler("' . $this->name . '", "' . e($individual->tree()->name()) . '");', 71 ]; 72 } 73 74 /** 75 * Return a JSON structure to a JSON request 76 * 77 * @param Tree $tree 78 * @param string $request list of JSON requests 79 * 80 * @return string 81 */ 82 public function getIndividuals(Tree $tree, string $request): string 83 { 84 $json_requests = explode(';', $request); 85 $r = []; 86 87 foreach ($json_requests as $json_request) { 88 $firstLetter = substr($json_request, 0, 1); 89 $json_request = substr($json_request, 1); 90 91 switch ($firstLetter) { 92 case 'c': 93 $families = Collection::make(explode(',', $json_request)) 94 ->map(static function (string $xref) use ($tree): ?Family { 95 return Registry::familyFactory()->make($xref, $tree); 96 }) 97 ->filter(); 98 99 $r[] = $this->drawChildren($families, 1, true); 100 break; 101 102 case 'p': 103 [$xref, $order] = explode('@', $json_request); 104 105 $family = Registry::familyFactory()->make($xref, $tree); 106 if ($family instanceof Family) { 107 // Prefer the paternal line 108 $parent = $family->husband() ?? $family->wife(); 109 110 // The family may have no parents (just children). 111 if ($parent instanceof Individual) { 112 $r[] = $this->drawPerson($parent, 0, 1, $family, $order, false); 113 } 114 } 115 break; 116 } 117 } 118 119 return json_encode($r, JSON_THROW_ON_ERROR); 120 } 121 122 /** 123 * Get the details for a person and their life partner(s) 124 * 125 * @param Individual $individual the individual to return the details for 126 * 127 * @return string 128 */ 129 public function getDetails(Individual $individual): string 130 { 131 $html = $this->getPersonDetails($individual, null); 132 foreach ($individual->spouseFamilies() as $family) { 133 $spouse = $family->spouse($individual); 134 if ($spouse) { 135 $html .= $this->getPersonDetails($spouse, $family); 136 } 137 } 138 139 return $html; 140 } 141 142 /** 143 * Return the details for a person 144 * 145 * @param Individual $individual 146 * @param Family|null $family 147 * 148 * @return string 149 */ 150 private function getPersonDetails(Individual $individual, Family $family = null): string 151 { 152 $chart_url = route('module', [ 153 'module' => 'tree', 154 'action' => 'Chart', 155 'xref' => $individual->xref(), 156 'tree' => $individual->tree()->name(), 157 ]); 158 159 $hmtl = $this->getThumbnail($individual); 160 $hmtl .= '<a class="tv_link" href="' . e($individual->url()) . '">' . $individual->fullName() . '</a> <a href="' . e($chart_url) . '" title="' . I18N::translate('Interactive tree of %s', strip_tags($individual->fullName())) . '" class="tv_link tv_treelink">' . view('icons/individual') . '</a>'; 161 foreach ($individual->facts(Gedcom::BIRTH_EVENTS, true) as $fact) { 162 $hmtl .= $fact->summary(); 163 } 164 if ($family) { 165 foreach ($family->facts(Gedcom::MARRIAGE_EVENTS, true) as $fact) { 166 $hmtl .= $fact->summary(); 167 } 168 } 169 foreach ($individual->facts(Gedcom::DEATH_EVENTS, true) as $fact) { 170 $hmtl .= $fact->summary(); 171 } 172 173 return '<div class="tv' . $individual->sex() . ' tv_person_expanded">' . $hmtl . '</div>'; 174 } 175 176 /** 177 * Draw the children for some families 178 * 179 * @param Collection<Family> $familyList array of families to draw the children for 180 * @param int $gen number of generations to draw 181 * @param bool $ajax true for an ajax call 182 * 183 * @return string 184 */ 185 private function drawChildren(Collection $familyList, int $gen = 1, bool $ajax = false): string 186 { 187 $html = ''; 188 $children2draw = []; 189 $f2load = []; 190 191 foreach ($familyList as $f) { 192 $children = $f->children(); 193 if ($children->isNotEmpty()) { 194 $f2load[] = $f->xref(); 195 foreach ($children as $child) { 196 // Eliminate duplicates - e.g. when adopted by a step-parent 197 $children2draw[$child->xref()] = $child; 198 } 199 } 200 } 201 $tc = count($children2draw); 202 if ($tc > 0) { 203 $f2load = implode(',', $f2load); 204 $nbc = 0; 205 foreach ($children2draw as $child) { 206 $nbc++; 207 if ($tc === 1) { 208 $co = 'c'; // unique 209 } elseif ($nbc === 1) { 210 $co = 't'; // first 211 } elseif ($nbc === $tc) { 212 $co = 'b'; //last 213 } else { 214 $co = 'h'; 215 } 216 $html .= $this->drawPerson($child, $gen - 1, -1, null, $co, false); 217 } 218 if (!$ajax) { 219 $html = '<td align="right"' . ($gen === 0 ? ' abbr="c' . $f2load . '"' : '') . '>' . $html . '</td>' . $this->drawHorizontalLine(); 220 } 221 } 222 223 return $html; 224 } 225 226 /** 227 * Draw a person in the tree 228 * 229 * @param Individual $person The Person object to draw the box for 230 * @param int $gen The number of generations up or down to print 231 * @param int $state Whether we are going up or down the tree, -1 for descendents +1 for ancestors 232 * @param Family|null $pfamily 233 * @param string $line b, c, h, t. Required for drawing lines between boxes 234 * @param bool $isRoot 235 * 236 * @return string 237 */ 238 private function drawPerson(Individual $person, int $gen, int $state, ?Family $pfamily, string $line, bool $isRoot): string 239 { 240 if ($gen < 0) { 241 return ''; 242 } 243 244 if ($pfamily instanceof Family) { 245 $partner = $pfamily->spouse($person); 246 } else { 247 $partner = $person->getCurrentSpouse(); 248 } 249 250 if ($isRoot) { 251 $html = '<table id="tvTreeBorder" class="tv_tree"><tbody><tr><td id="tv_tree_topleft"></td><td id="tv_tree_top"></td><td id="tv_tree_topright"></td></tr><tr><td id="tv_tree_left"></td><td>'; 252 } else { 253 $html = ''; 254 } 255 /* height 1% : this hack enable the div auto-dimensioning in td for FF & Chrome */ 256 $html .= '<table class="tv_tree"' . ($isRoot ? ' id="tv_tree"' : '') . ' style="height: 1%"><tbody><tr>'; 257 258 if ($state <= 0) { 259 // draw children 260 $html .= $this->drawChildren($person->spouseFamilies(), $gen); 261 } else { 262 // draw the parent’s lines 263 $html .= $this->drawVerticalLine($line) . $this->drawHorizontalLine(); 264 } 265 266 /* draw the person. Do NOT add person or family id as an id, since a same person could appear more than once in the tree !!! */ 267 // Fixing the width for td to the box initial width when the person is the root person fix a rare bug that happen when a person without child and without known parents is the root person : an unwanted white rectangle appear at the right of the person’s boxes, otherwise. 268 $html .= '<td' . ($isRoot ? ' style="width:1px"' : '') . '><div class="tv_box' . ($isRoot ? ' rootPerson' : '') . '" dir="' . I18N::direction() . '" style="text-align: ' . (I18N::direction() === 'rtl' ? 'right' : 'left') . '; direction: ' . I18N::direction() . '" abbr="' . $person->xref() . '" onclick="' . $this->name . 'Handler.expandBox(this, event);">'; 269 $html .= $this->drawPersonName($person, ''); 270 271 $fop = []; // $fop is fathers of partners 272 273 if ($partner !== null) { 274 $dashed = ''; 275 foreach ($person->spouseFamilies() as $family) { 276 $spouse = $family->spouse($person); 277 if ($spouse instanceof Individual) { 278 $spouse_parents = $spouse->childFamilies()->first(); 279 if ($spouse_parents instanceof Family) { 280 $spouse_parent = $spouse_parents->husband() ?? $spouse_parents->wife(); 281 282 if ($spouse_parent instanceof Individual) { 283 $fop[] = [$spouse_parent, $spouse_parents]; 284 } 285 } 286 287 $html .= $this->drawPersonName($spouse, $dashed); 288 $dashed = 'dashed'; 289 } 290 } 291 } 292 $html .= '</div></td>'; 293 294 $primaryChildFamily = $person->childFamilies()->first(); 295 if ($primaryChildFamily instanceof Family) { 296 $parent = $primaryChildFamily->husband() ?? $primaryChildFamily->wife(); 297 } else { 298 $parent = null; 299 } 300 301 if ($parent instanceof Individual || !empty($fop) || $state < 0) { 302 $html .= $this->drawHorizontalLine(); 303 } 304 305 /* draw the parents */ 306 if ($state >= 0 && ($parent instanceof Individual || !empty($fop))) { 307 $unique = $parent === null || empty($fop); 308 $html .= '<td align="left"><table class="tv_tree"><tbody>'; 309 310 if ($parent instanceof Individual) { 311 $u = $unique ? 'c' : 't'; 312 $html .= '<tr><td ' . ($gen === 0 ? ' abbr="p' . $primaryChildFamily->xref() . '@' . $u . '"' : '') . '>'; 313 $html .= $this->drawPerson($parent, $gen - 1, 1, $primaryChildFamily, $u, false); 314 $html .= '</td></tr>'; 315 } 316 317 if (count($fop)) { 318 $n = 0; 319 $nb = count($fop); 320 foreach ($fop as $p) { 321 $n++; 322 $u = $unique ? 'c' : ($n === $nb || empty($p[1]) ? 'b' : 'h'); 323 $html .= '<tr><td ' . ($gen === 0 ? ' abbr="p' . $p[1]->xref() . '@' . $u . '"' : '') . '>' . $this->drawPerson($p[0], $gen - 1, 1, $p[1], $u, false) . '</td></tr>'; 324 } 325 } 326 $html .= '</tbody></table></td>'; 327 } 328 329 if ($state < 0) { 330 $html .= $this->drawVerticalLine($line); 331 } 332 333 $html .= '</tr></tbody></table>'; 334 335 if ($isRoot) { 336 $html .= '</td><td id="tv_tree_right"></td></tr><tr><td id="tv_tree_bottomleft"></td><td id="tv_tree_bottom"></td><td id="tv_tree_bottomright"></td></tr></tbody></table>'; 337 } 338 339 return $html; 340 } 341 342 /** 343 * Draw a person name preceded by sex icon, with parents as tooltip 344 * 345 * @param Individual $individual The individual to draw 346 * @param string $dashed Either "dashed", to print dashed top border to separate multiple spouses, or "" 347 * 348 * @return string 349 */ 350 private function drawPersonName(Individual $individual, string $dashed): string 351 { 352 $family = $individual->childFamilies()->first(); 353 if ($family) { 354 $family_name = strip_tags($family->fullName()); 355 } else { 356 $family_name = I18N::translateContext('unknown family', 'unknown'); 357 } 358 switch ($individual->sex()) { 359 case 'M': 360 /* I18N: e.g. “Son of [father name & mother name]” */ 361 $title = ' title="' . I18N::translate('Son of %s', $family_name) . '"'; 362 break; 363 case 'F': 364 /* I18N: e.g. “Daughter of [father name & mother name]” */ 365 $title = ' title="' . I18N::translate('Daughter of %s', $family_name) . '"'; 366 break; 367 default: 368 /* I18N: e.g. “Child of [father name & mother name]” */ 369 $title = ' title="' . I18N::translate('Child of %s', $family_name) . '"'; 370 break; 371 } 372 $sex = $individual->sex(); 373 374 return '<div class="tv' . $sex . ' ' . $dashed . '"' . $title . '><a href="' . e($individual->url()) . '"></a>' . $individual->fullName() . ' <span class="dates">' . $individual->lifespan() . '</span></div>'; 375 } 376 377 /** 378 * Get the thumbnail image for the given person 379 * 380 * @param Individual $individual 381 * 382 * @return string 383 */ 384 private function getThumbnail(Individual $individual): string 385 { 386 if ($individual->tree()->getPreference('SHOW_HIGHLIGHT_IMAGES')) { 387 return $individual->displayImage(40, 50, 'crop', []); 388 } 389 390 return ''; 391 } 392 393 /** 394 * Draw a vertical line 395 * 396 * @param string $line A parameter that set how to draw this line with auto-resizing capabilities 397 * 398 * @return string 399 * WARNING : some tricky hacks are required in CSS to ensure cross-browser compliance 400 * some browsers shows an image, which imply a size limit in height, 401 * and some other browsers (ex: firefox) shows a <div> tag, which have no size limit in height 402 * Therefore, Firefox is a good choice to print very big trees. 403 */ 404 private function drawVerticalLine(string $line): string 405 { 406 return '<td class="tv_vline tv_vline_' . $line . '"><div class="tv_vline tv_vline_' . $line . '"></div></td>'; 407 } 408 409 /** 410 * Draw an horizontal line 411 */ 412 private function drawHorizontalLine(): string 413 { 414 return '<td class="tv_hline"><div class="tv_hline"></div></td>'; 415 } 416} 417