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Current File : /var/www/html/webtrees/app/Module/InteractiveTree/TreeView.php
<?php
/**
* webtrees: online genealogy
* Copyright (C) 2023 webtrees development team
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
declare(strict_types=1);
namespace Fisharebest\Webtrees\Module\InteractiveTree;
use Fisharebest\Webtrees\Family;
use Fisharebest\Webtrees\Gedcom;
use Fisharebest\Webtrees\I18N;
use Fisharebest\Webtrees\Individual;
use Fisharebest\Webtrees\Registry;
use Fisharebest\Webtrees\Tree;
use Illuminate\Support\Collection;
use function count;
use const JSON_THROW_ON_ERROR;
/**
* Class TreeView
*/
class TreeView
{
// HTML element name
private string $name;
/**
* Treeview Constructor
*
* @param string $name the name of the TreeView object’s instance
*/
public function __construct(string $name = 'tree')
{
$this->name = $name;
}
/**
* Draw the viewport which creates the draggable/zoomable framework
* Size is set by the container, as the viewport can scale itself automatically
*
* @param Individual $individual Draw the chart for this individual
* @param int $generations number of generations to draw
*
* @return array<string> HTML and Javascript
*/
public function drawViewport(Individual $individual, int $generations): array
{
$html = view('modules/interactive-tree/chart', [
'module' => 'tree',
'name' => $this->name,
'individual' => $this->drawPerson($individual, $generations, 0, null, '', true),
'tree' => $individual->tree(),
]);
return [
$html,
'var ' . $this->name . 'Handler = new TreeViewHandler("' . $this->name . '", "' . e($individual->tree()->name()) . '");',
];
}
/**
* Return a JSON structure to a JSON request
*
* @param Tree $tree
* @param string $request list of JSON requests
*
* @return string
*/
public function getIndividuals(Tree $tree, string $request): string
{
$json_requests = explode(';', $request);
$r = [];
foreach ($json_requests as $json_request) {
$firstLetter = substr($json_request, 0, 1);
$json_request = substr($json_request, 1);
switch ($firstLetter) {
case 'c':
$families = Collection::make(explode(',', $json_request))
->map(static function (string $xref) use ($tree): ?Family {
return Registry::familyFactory()->make($xref, $tree);
})
->filter();
$r[] = $this->drawChildren($families, 1, true);
break;
case 'p':
[$xref, $order] = explode('@', $json_request);
$family = Registry::familyFactory()->make($xref, $tree);
if ($family instanceof Family) {
// Prefer the paternal line
$parent = $family->husband() ?? $family->wife();
// The family may have no parents (just children).
if ($parent instanceof Individual) {
$r[] = $this->drawPerson($parent, 0, 1, $family, $order, false);
}
}
break;
}
}
return json_encode($r, JSON_THROW_ON_ERROR);
}
/**
* Get the details for a person and their life partner(s)
*
* @param Individual $individual the individual to return the details for
*
* @return string
*/
public function getDetails(Individual $individual): string
{
$html = $this->getPersonDetails($individual, null);
foreach ($individual->spouseFamilies() as $family) {
$spouse = $family->spouse($individual);
if ($spouse) {
$html .= $this->getPersonDetails($spouse, $family);
}
}
return $html;
}
/**
* Return the details for a person
*
* @param Individual $individual
* @param Family|null $family
*
* @return string
*/
private function getPersonDetails(Individual $individual, ?Family $family = null): string
{
$chart_url = route('module', [
'module' => 'tree',
'action' => 'Chart',
'xref' => $individual->xref(),
'tree' => $individual->tree()->name(),
]);
$hmtl = $this->getThumbnail($individual);
$hmtl .= '<a class="tv_link" href="' . e($individual->url()) . '">' . $individual->fullName() . '</a> <a href="' . e($chart_url) . '" title="' . I18N::translate('Interactive tree of %s', strip_tags($individual->fullName())) . '" class="tv_link tv_treelink">' . view('icons/individual') . '</a>';
foreach ($individual->facts(Gedcom::BIRTH_EVENTS, true) as $fact) {
$hmtl .= $fact->summary();
}
if ($family instanceof Family) {
foreach ($family->facts(Gedcom::MARRIAGE_EVENTS, true) as $fact) {
$hmtl .= $fact->summary();
}
}
foreach ($individual->facts(Gedcom::DEATH_EVENTS, true) as $fact) {
$hmtl .= $fact->summary();
}
return '<div class="tv' . $individual->sex() . ' tv_person_expanded">' . $hmtl . '</div>';
}
/**
* Draw the children for some families
*
* @param Collection<int,Family> $familyList array of families to draw the children for
* @param int $gen number of generations to draw
* @param bool $ajax true for an ajax call
*
* @return string
*/
private function drawChildren(Collection $familyList, int $gen = 1, bool $ajax = false): string
{
$html = '';
$children2draw = [];
$f2load = [];
foreach ($familyList as $f) {
$children = $f->children();
if ($children->isNotEmpty()) {
$f2load[] = $f->xref();
foreach ($children as $child) {
// Eliminate duplicates - e.g. when adopted by a step-parent
$children2draw[$child->xref()] = $child;
}
}
}
$tc = count($children2draw);
if ($tc > 0) {
$f2load = implode(',', $f2load);
$nbc = 0;
foreach ($children2draw as $child) {
$nbc++;
if ($tc === 1) {
$co = 'c'; // unique
} elseif ($nbc === 1) {
$co = 't'; // first
} elseif ($nbc === $tc) {
$co = 'b'; //last
} else {
$co = 'h';
}
$html .= $this->drawPerson($child, $gen - 1, -1, null, $co, false);
}
if (!$ajax) {
$html = '<td align="right"' . ($gen === 0 ? ' abbr="c' . $f2load . '"' : '') . '>' . $html . '</td>' . $this->drawHorizontalLine();
}
}
return $html;
}
/**
* Draw a person in the tree
*
* @param Individual $person The Person object to draw the box for
* @param int $gen The number of generations up or down to print
* @param int $state Whether we are going up or down the tree, -1 for descendents +1 for ancestors
* @param Family|null $pfamily
* @param string $line b, c, h, t. Required for drawing lines between boxes
* @param bool $isRoot
*
* @return string
*/
private function drawPerson(Individual $person, int $gen, int $state, ?Family $pfamily, string $line, bool $isRoot): string
{
if ($gen < 0) {
return '';
}
if ($pfamily instanceof Family) {
$partner = $pfamily->spouse($person);
} else {
$partner = $person->getCurrentSpouse();
}
if ($isRoot) {
$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>';
} else {
$html = '';
}
/* height 1% : this hack enable the div auto-dimensioning in td for FF & Chrome */
$html .= '<table class="tv_tree"' . ($isRoot ? ' id="tv_tree"' : '') . ' style="height: 1%"><tbody><tr>';
if ($state <= 0) {
// draw children
$html .= $this->drawChildren($person->spouseFamilies(), $gen);
} else {
// draw the parent’s lines
$html .= $this->drawVerticalLine($line) . $this->drawHorizontalLine();
}
/* 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 !!! */
// 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.
$html .= '<td' . ($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);">';
$html .= $this->drawPersonName($person, '');
$fop = []; // $fop is fathers of partners
if ($partner !== null) {
$dashed = '';
foreach ($person->spouseFamilies() as $family) {
$spouse = $family->spouse($person);
if ($spouse instanceof Individual) {
$spouse_parents = $spouse->childFamilies()->first();
if ($spouse_parents instanceof Family) {
$spouse_parent = $spouse_parents->husband() ?? $spouse_parents->wife();
if ($spouse_parent instanceof Individual) {
$fop[] = [$spouse_parent, $spouse_parents];
}
}
$html .= $this->drawPersonName($spouse, $dashed);
$dashed = 'dashed';
}
}
}
$html .= '</div></td>';
$primaryChildFamily = $person->childFamilies()->first();
if ($primaryChildFamily instanceof Family) {
$parent = $primaryChildFamily->husband() ?? $primaryChildFamily->wife();
} else {
$parent = null;
}
if ($parent instanceof Individual || $fop !== [] || $state < 0) {
$html .= $this->drawHorizontalLine();
}
/* draw the parents */
if ($state >= 0 && ($parent instanceof Individual || $fop !== [])) {
$unique = $parent === null || $fop === [];
$html .= '<td align="left"><table class="tv_tree"><tbody>';
if ($parent instanceof Individual) {
$u = $unique ? 'c' : 't';
$html .= '<tr><td ' . ($gen === 0 ? ' abbr="p' . $primaryChildFamily->xref() . '@' . $u . '"' : '') . '>';
$html .= $this->drawPerson($parent, $gen - 1, 1, $primaryChildFamily, $u, false);
$html .= '</td></tr>';
}
if ($fop !== []) {
$n = 0;
$nb = count($fop);
foreach ($fop as $p) {
$n++;
$u = $unique ? 'c' : ($n === $nb || empty($p[1]) ? 'b' : 'h');
$html .= '<tr><td ' . ($gen === 0 ? ' abbr="p' . $p[1]->xref() . '@' . $u . '"' : '') . '>' . $this->drawPerson($p[0], $gen - 1, 1, $p[1], $u, false) . '</td></tr>';
}
}
$html .= '</tbody></table></td>';
}
if ($state < 0) {
$html .= $this->drawVerticalLine($line);
}
$html .= '</tr></tbody></table>';
if ($isRoot) {
$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>';
}
return $html;
}
/**
* Draw a person name preceded by sex icon, with parents as tooltip
*
* @param Individual $individual The individual to draw
* @param string $dashed Either "dashed", to print dashed top border to separate multiple spouses, or ""
*
* @return string
*/
private function drawPersonName(Individual $individual, string $dashed): string
{
$family = $individual->childFamilies()->first();
if ($family) {
$family_name = strip_tags($family->fullName());
} else {
$family_name = I18N::translateContext('unknown family', 'unknown');
}
switch ($individual->sex()) {
case 'M':
/* I18N: e.g. “Son of [father name & mother name]” */
$title = ' title="' . I18N::translate('Son of %s', $family_name) . '"';
break;
case 'F':
/* I18N: e.g. “Daughter of [father name & mother name]” */
$title = ' title="' . I18N::translate('Daughter of %s', $family_name) . '"';
break;
default:
/* I18N: e.g. “Child of [father name & mother name]” */
$title = ' title="' . I18N::translate('Child of %s', $family_name) . '"';
break;
}
$sex = $individual->sex();
return '<div class="tv' . $sex . ' ' . $dashed . '"' . $title . '><a href="' . e($individual->url()) . '"></a>' . $individual->fullName() . ' <span class="dates">' . $individual->lifespan() . '</span></div>';
}
/**
* Get the thumbnail image for the given person
*
* @param Individual $individual
*
* @return string
*/
private function getThumbnail(Individual $individual): string
{
if ($individual->tree()->getPreference('SHOW_HIGHLIGHT_IMAGES') !== '' && $individual->tree()->getPreference('SHOW_HIGHLIGHT_IMAGES') !== '0') {
return $individual->displayImage(40, 50, 'crop', []);
}
return '';
}
/**
* Draw a vertical line
*
* @param string $line A parameter that set how to draw this line with auto-resizing capabilities
*
* @return string
* WARNING : some tricky hacks are required in CSS to ensure cross-browser compliance
* some browsers shows an image, which imply a size limit in height,
* and some other browsers (ex: firefox) shows a <div> tag, which have no size limit in height
* Therefore, Firefox is a good choice to print very big trees.
*/
private function drawVerticalLine(string $line): string
{
return '<td class="tv_vline tv_vline_' . $line . '"><div class="tv_vline tv_vline_' . $line . '"></div></td>';
}
/**
* Draw an horizontal line
*/
private function drawHorizontalLine(): string
{
return '<td class="tv_hline"><div class="tv_hline"></div></td>';
}
}
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