1<?php 2 3/** 4 * webtrees: online genealogy 5 * Copyright (C) 2019 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 <http://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\Tree; 27use Illuminate\Support\Collection; 28 29/** 30 * Class TreeView 31 */ 32class TreeView 33{ 34 /** @var string HTML element name */ 35 private $name; 36 37 /** 38 * Treeview Constructor 39 * 40 * @param string $name the name of the TreeView object’s instance 41 */ 42 public function __construct(string $name = 'tree') 43 { 44 $this->name = $name; 45 } 46 47 /** 48 * Draw the viewport which creates the draggable/zoomable framework 49 * Size is set by the container, as the viewport can scale itself automatically 50 * 51 * @param Individual $individual Draw the chart for this individual 52 * @param int $generations number of generations to draw 53 * 54 * @return string[] HTML and Javascript 55 */ 56 public function drawViewport(Individual $individual, int $generations): array 57 { 58 $html = view('modules/interactive-tree/chart', [ 59 'module' => 'tree', 60 'name' => $this->name, 61 'individual' => $this->drawPerson($individual, $generations, 0, null, '', true), 62 ]); 63 64 return [ 65 $html, 66 'var ' . $this->name . 'Handler = new TreeViewHandler("' . $this->name . '", "' . e($individual->tree()->name()) . '");', 67 ]; 68 } 69 70 /** 71 * Return a JSON structure to a JSON request 72 * 73 * @param Tree $tree 74 * @param string $request list of JSON requests 75 * 76 * @return string 77 */ 78 public function getIndividuals(Tree $tree, string $request): string 79 { 80 $json_requests = explode(';', $request); 81 $r = []; 82 foreach ($json_requests as $json_request) { 83 $firstLetter = substr($json_request, 0, 1); 84 $json_request = substr($json_request, 1); 85 86 switch ($firstLetter) { 87 case 'c': 88 $families = Collection::make(explode(',', $json_request)) 89 ->map(static function (string $xref) use ($tree): ?Family { 90 return Family::getInstance($xref, $tree); 91 }) 92 ->filter(); 93 94 $r[] = $this->drawChildren($families, 1, true); 95 break; 96 97 case 'p': 98 [$xref, $order] = explode('@', $json_request); 99 100 $family = Family::getInstance($xref, $tree); 101 if ($family instanceof Family) { 102 // Prefer the paternal line 103 $parent = $family->husband() ?? $family->wife(); 104 105 // The family may have no parents (just children). 106 if ($parent instanceof Individual) { 107 $r[] = $this->drawPerson($parent, 0, 1, $family, $order, false); 108 } 109 } 110 break; 111 } 112 } 113 114 return json_encode($r); 115 } 116 117 /** 118 * Get the details for a person and their life partner(s) 119 * 120 * @param Individual $individual the individual to return the details for 121 * 122 * @return string 123 */ 124 public function getDetails(Individual $individual): string 125 { 126 $html = $this->getPersonDetails($individual, null); 127 foreach ($individual->spouseFamilies() as $family) { 128 $spouse = $family->spouse($individual); 129 if ($spouse) { 130 $html .= $this->getPersonDetails($spouse, $family); 131 } 132 } 133 134 return $html; 135 } 136 137 /** 138 * Return the details for a person 139 * 140 * @param Individual $individual 141 * @param Family|null $family 142 * 143 * @return string 144 */ 145 private function getPersonDetails(Individual $individual, Family $family = null): string 146 { 147 $chart_url = route('module', [ 148 'module' => 'tree', 149 'action' => 'Chart', 150 'xref' => $individual->xref(), 151 'tree' => $individual->tree()->name(), 152 ]); 153 154 $hmtl = $this->getThumbnail($individual); 155 $hmtl .= '<a class="tv_link" href="' . e($individual->url()) . '">' . $individual->fullName() . '</a> <a href="' . e($chart_url) . '" title="' . I18N::translate('Interactive tree of %s', strip_tags($individual->fullName())) . '" class="wt-icon-individual tv_link tv_treelink"></a>'; 156 foreach ($individual->facts(Gedcom::BIRTH_EVENTS, true) as $fact) { 157 $hmtl .= $fact->summary(); 158 } 159 if ($family) { 160 foreach ($family->facts(Gedcom::MARRIAGE_EVENTS, true) as $fact) { 161 $hmtl .= $fact->summary(); 162 } 163 } 164 foreach ($individual->facts(Gedcom::DEATH_EVENTS, true) as $fact) { 165 $hmtl .= $fact->summary(); 166 } 167 168 return '<div class="tv' . $individual->sex() . ' tv_person_expanded">' . $hmtl . '</div>'; 169 } 170 171 /** 172 * Draw the children for some families 173 * 174 * @param Collection $familyList array of families to draw the children for 175 * @param int $gen number of generations to draw 176 * @param bool $ajax true for an ajax call 177 * 178 * @return string 179 */ 180 private function drawChildren(Collection $familyList, int $gen = 1, bool $ajax = false): string 181 { 182 $html = ''; 183 $children2draw = []; 184 $f2load = []; 185 186 foreach ($familyList as $f) { 187 $children = $f->children(); 188 if ($children->isNotEmpty()) { 189 $f2load[] = $f->xref(); 190 foreach ($children as $child) { 191 // Eliminate duplicates - e.g. when adopted by a step-parent 192 $children2draw[$child->xref()] = $child; 193 } 194 } 195 } 196 $tc = count($children2draw); 197 if ($tc) { 198 $f2load = implode(',', $f2load); 199 $nbc = 0; 200 foreach ($children2draw as $child) { 201 $nbc++; 202 if ($tc == 1) { 203 $co = 'c'; // unique 204 } elseif ($nbc == 1) { 205 $co = 't'; // first 206 } elseif ($nbc == $tc) { 207 $co = 'b'; //last 208 } else { 209 $co = 'h'; 210 } 211 $html .= $this->drawPerson($child, $gen - 1, -1, null, $co, false); 212 } 213 if (!$ajax) { 214 $html = '<td align="right"' . ($gen == 0 ? ' abbr="c' . $f2load . '"' : '') . '>' . $html . '</td>' . $this->drawHorizontalLine(); 215 } 216 } 217 218 return $html; 219 } 220 221 /** 222 * Draw a person in the tree 223 * 224 * @param Individual $person The Person object to draw the box for 225 * @param int $gen The number of generations up or down to print 226 * @param int $state Whether we are going up or down the tree, -1 for descendents +1 for ancestors 227 * @param Family|null $pfamily 228 * @param string $line b, c, h, t. Required for drawing lines between boxes 229 * @param bool $isRoot 230 * 231 * @return string 232 */ 233 private function drawPerson(Individual $person, int $gen, int $state, Family $pfamily = null, string $line = '', $isRoot = false): string 234 { 235 if ($gen < 0) { 236 return ''; 237 } 238 239 if ($pfamily instanceof Family) { 240 $partner = $pfamily->spouse($person); 241 } else { 242 $partner = $person->getCurrentSpouse(); 243 } 244 245 if ($isRoot) { 246 $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>'; 247 } else { 248 $html = ''; 249 } 250 /* height 1% : this hack enable the div auto-dimensioning in td for FF & Chrome */ 251 $html .= '<table class="tv_tree"' . ($isRoot ? ' id="tv_tree"' : '') . ' style="height: 1%"><tbody><tr>'; 252 253 if ($state <= 0) { 254 // draw children 255 $html .= $this->drawChildren($person->spouseFamilies(), $gen); 256 } else { 257 // draw the parent’s lines 258 $html .= $this->drawVerticalLine($line) . $this->drawHorizontalLine(); 259 } 260 261 /* 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 !!! */ 262 // 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. 263 $html .= '<td' . ($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);">'; 264 $html .= $this->drawPersonName($person, ''); 265 266 $fop = []; // $fop is fathers of partners 267 268 if ($partner !== null) { 269 $dashed = ''; 270 foreach ($person->spouseFamilies() as $family) { 271 $spouse = $family->spouse($person); 272 if ($spouse instanceof Individual) { 273 $spouse_parents = $spouse->primaryChildFamily(); 274 if ($spouse_parents instanceof Family) { 275 $spouse_parent = $spouse_parents->husband() ?? $spouse_parents->wife(); 276 277 if ($spouse_parent instanceof Individual) { 278 $fop[] = [$spouse_parent, $spouse_parents]; 279 } 280 } 281 282 $html .= $this->drawPersonName($spouse, $dashed); 283 $dashed = 'dashed'; 284 } 285 } 286 } 287 $html .= '</div></td>'; 288 289 $primaryChildFamily = $person->primaryChildFamily(); 290 if ($primaryChildFamily instanceof Family) { 291 $parent = $primaryChildFamily->husband() ?? $primaryChildFamily->wife(); 292 } else { 293 $parent = null; 294 } 295 296 if ($parent instanceof Individual || !empty($fop) || $state < 0) { 297 $html .= $this->drawHorizontalLine(); 298 } 299 300 /* draw the parents */ 301 if ($state >= 0 && ($parent instanceof Individual || !empty($fop))) { 302 $unique = $parent === null || empty($fop); 303 $html .= '<td align="left"><table class="tv_tree"><tbody>'; 304 305 if ($parent instanceof Individual) { 306 $u = $unique ? 'c' : 't'; 307 $html .= '<tr><td ' . ($gen == 0 ? ' abbr="p' . $primaryChildFamily->xref() . '@' . $u . '"' : '') . '>'; 308 $html .= $this->drawPerson($parent, $gen - 1, 1, $primaryChildFamily, $u, false); 309 $html .= '</td></tr>'; 310 } 311 312 if (count($fop)) { 313 $n = 0; 314 $nb = count($fop); 315 foreach ($fop as $p) { 316 $n++; 317 $u = $unique ? 'c' : ($n == $nb || empty($p[1]) ? 'b' : 'h'); 318 $html .= '<tr><td ' . ($gen == 0 ? ' abbr="p' . $p[1]->xref() . '@' . $u . '"' : '') . '>' . $this->drawPerson($p[0], $gen - 1, 1, $p[1], $u, false) . '</td></tr>'; 319 } 320 } 321 $html .= '</tbody></table></td>'; 322 } 323 324 if ($state < 0) { 325 $html .= $this->drawVerticalLine($line); 326 } 327 328 $html .= '</tr></tbody></table>'; 329 330 if ($isRoot) { 331 $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>'; 332 } 333 334 return $html; 335 } 336 337 /** 338 * Draw a person name preceded by sex icon, with parents as tooltip 339 * 340 * @param Individual $individual The individual to draw 341 * @param string $dashed Either "dashed", to print dashed top border to separate multiple spouses, or "" 342 * 343 * @return string 344 */ 345 private function drawPersonName(Individual $individual, string $dashed): string 346 { 347 $family = $individual->primaryChildFamily(); 348 if ($family) { 349 $family_name = strip_tags($family->fullName()); 350 } else { 351 $family_name = I18N::translateContext('unknown family', 'unknown'); 352 } 353 switch ($individual->sex()) { 354 case 'M': 355 /* I18N: e.g. “Son of [father name & mother name]” */ 356 $title = ' title="' . I18N::translate('Son of %s', $family_name) . '"'; 357 break; 358 case 'F': 359 /* I18N: e.g. “Daughter of [father name & mother name]” */ 360 $title = ' title="' . I18N::translate('Daughter of %s', $family_name) . '"'; 361 break; 362 default: 363 /* I18N: e.g. “Child of [father name & mother name]” */ 364 $title = ' title="' . I18N::translate('Child of %s', $family_name) . '"'; 365 break; 366 } 367 $sex = $individual->sex(); 368 369 return '<div class="tv' . $sex . ' ' . $dashed . '"' . $title . '><a href="' . e($individual->url()) . '"></a>' . $individual->fullName() . ' <span class="dates">' . $individual->getLifeSpan() . '</span></div>'; 370 } 371 372 /** 373 * Get the thumbnail image for the given person 374 * 375 * @param Individual $individual 376 * 377 * @return string 378 */ 379 private function getThumbnail(Individual $individual): string 380 { 381 if ($individual->tree()->getPreference('SHOW_HIGHLIGHT_IMAGES')) { 382 return $individual->displayImage(40, 50, 'crop', []); 383 } 384 385 return ''; 386 } 387 388 /** 389 * Draw a vertical line 390 * 391 * @param string $line A parameter that set how to draw this line with auto-redimensionning capabilities 392 * 393 * @return string 394 * WARNING : some tricky hacks are required in CSS to ensure cross-browser compliance 395 * some browsers shows an image, which imply a size limit in height, 396 * and some other browsers (ex: firefox) shows a <div> tag, which have no size limit in height 397 * Therefore, Firefox is a good choice to print very big trees. 398 */ 399 private function drawVerticalLine(string $line): string 400 { 401 return '<td class="tv_vline tv_vline_' . $line . '"><div class="tv_vline tv_vline_' . $line . '"></div></td>'; 402 } 403 404 /** 405 * Draw an horizontal line 406 */ 407 private function drawHorizontalLine(): string 408 { 409 return '<td class="tv_hline"><div class="tv_hline"></div></td>'; 410 } 411} 412