erste Lauffähige Fassung
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Thomas Spohr
99
mod_pdf_tree/helper.php
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99
mod_pdf_tree/helper.php
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<?php
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// Direktzugriff verhindern
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defined('_JEXEC') or die;
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// Hilfsklasse zur URI-Verarbeitung einbinden
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use Joomla\CMS\Uri\Uri;
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/**
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* Modul-Hilfsklasse: Baumstruktur aus JSON-Datei aufbereiten
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*/
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class ModEisAnzeigeHelper
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{
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/**
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* JSON-Datei einlesen und als Array zurückgeben
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* @param string $jsonPath Pfad relativ zum Joomla-Root
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* @return array Strukturierte Baumdaten oder leeres Array
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*/
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public static function getItems(string $jsonPath): array
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{
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$file = JPATH_ROOT . DIRECTORY_SEPARATOR . ltrim($jsonPath, '/');
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if (!file_exists($file)) {
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return [];
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}
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$json = file_get_contents($file);
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$data = json_decode($json, true);
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if (json_last_error() !== JSON_ERROR_NONE || !is_array($data)) {
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return [];
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}
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return $data;
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}
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/**
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* Baumstruktur als HTML generieren (rekursiv)
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* @param array $items Eingelesene JSON-Daten
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* @return string HTML-Ausgabe
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*/
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public static function renderTree(array $items): string
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{
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$html = '<ul class="pdf-tree">';
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foreach ($items as $node) {
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$name = htmlspecialchars($node['name'], ENT_QUOTES, 'UTF-8');
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// Ordner: hat Kinder
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if (isset($node['children']) && is_array($node['children'])) {
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$count = self::countFiles($node['children']);
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$html .= '<li class="folder">'
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. '<span class="toggle">▶</span>'
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. '<span class="folder-icon"></span>'
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. '<span class="folder-name">'
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. $name . ' (' . $count . ')'
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. '</span>';
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// Rekursiver Aufruf
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$html .= self::renderTree($node['children']);
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$html .= '</li>';
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} else {
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// Datei
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$path = $node['path'] ?? '';
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$relative = str_replace(JPATH_ROOT, '', $path);
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$url = Uri::root(true) . '/' . ltrim(str_replace(DIRECTORY_SEPARATOR, '/', $relative), '/');
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$html .= '<li class="file">'
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. '<span class="file-icon"></span>'
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. '<a href="' . $url . '" class="file-link" download>'
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. $name . '</a>'
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. '</li>';
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}
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}
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$html .= '</ul>';
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return $html;
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}
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/**
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* Dateien im aktuellen Knotenbaum zählen
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* @param array $items Unterknoten
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* @return int Anzahl Dateien
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*/
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private static function countFiles(array $items): int
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{
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$count = 0;
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foreach ($items as $node) {
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if (isset($node['children']) && is_array($node['children'])) {
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$count += self::countFiles($node['children']);
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} else {
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$count++;
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}
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}
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return $count;
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}
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}
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20
mod_pdf_tree/mod_eis_anzeige.php
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20
mod_pdf_tree/mod_eis_anzeige.php
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<?php
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// Prevent direct access
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defined('_JEXEC') or die;
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// Include the helper class
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require_once __DIR__ . '/helper.php';
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// Retrieve JSON path and access params
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$jsonPath = $params->get('json_path', 'media/com_eis/documents.json');
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$confidentialLevel = $params->get('confidential_level');
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$privateUserId = $params->get('private_user');
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// Load and parse JSON document tree
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$items = ModEisAnzeigeHelper::getItems($jsonPath);
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// TODO: Apply access filtering
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// $items = ModEisAnzeigeHelper::filterByAccess($items, $confidentialLevel, $privateUserId);
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// Render module layout
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require JModuleHelper::getLayoutPath('mod_eis_anzeige', $params->get('layout', 'default'));
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28
mod_pdf_tree/mod_eis_anzeige.xml
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28
mod_pdf_tree/mod_eis_anzeige.xml
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<?xml version="1.0" encoding="utf-8"?>
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<extension type="module" version="5.0" client="site" method="upgrade">
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<name>EIS-Anzeige</name>
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<author>Ich</author>
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<version>1.0.1</version>
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<description>Anzeige des PDF-Baums mit Dokumentenzählung und Expand/Collapse-All</description>
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<files>
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<filename module="mod_eis_anzeige">mod_eis_anzeige.php</filename>
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<filename>helper.php</filename>
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<folder>tmpl</folder>
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</files>
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<config>
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<fields name="params">
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<fieldset name="basic">
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<field name="json_path" type="text"
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default="media/com_eis/documents.json"
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label="JSON Path"
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description="Pfad zur JSON-Datei relativ zum Joomla Root" />
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<field name="confidential_level" type="viewlevels"
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label="Confidential Access Level"
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description="View level for confidential documents" />
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<field name="private_user" type="user"
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label="Private Document Owner"
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description="User who can view private documents" />
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</fieldset>
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</fields>
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</config>
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</extension>
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114
mod_pdf_tree/tmpl/default.php
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114
mod_pdf_tree/tmpl/default.php
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<?php defined('_JEXEC') or die; ?>
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<!-- Styles für Struktur, Vorschau und Icons -->
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<style>
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/* Baum und Vorschau nebeneinander */
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.pdf-tree-wrapper { display: flex; }
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.pdf-tree-container { flex: 1; }
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/* Verzeichnisliste zurücksetzen */
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.pdf-tree, .pdf-tree ul {
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list-style: none;
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margin: 0;
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padding: 0;
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}
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.pdf-tree li { margin: 0.3em 0; }
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/* Ordner-Icons & Pfeile */
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.folder > .toggle { cursor: pointer; display: inline-block; width: 1em; }
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.folder-icon::before { content: "📁"; margin-right: 4px; }
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/* Datei-Icon */
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.file-icon::before { content: "📄"; margin-right: 4px; }
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/* Standard: Unterverzeichnisse einklappen */
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.pdf-tree ul {
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display: none;
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margin-left: 1.5em;
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}
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/* Vorschaufenster rechts */
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#pdf-preview {
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flex: 1;
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margin-left: 1em;
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border: 1px solid #ccc;
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background: #fff;
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display: none;
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}
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#pdf-preview iframe {
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width: 100%;
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height: 100%;
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border: none;
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}
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/* Buttons oben */
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.expand-collapse { margin-bottom: 0.5em; }
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.expand-collapse button { margin-right: 0.5em; }
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</style>
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<!-- Steuerbuttons oben -->
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<div class="expand-collapse">
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<button id="expand-all">Expand All</button>
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<button id="collapse-all">Collapse All</button>
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</div>
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<div class="pdf-tree-wrapper">
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<!-- Links: Verzeichnisbaum -->
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<div class="pdf-tree-container">
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<?php echo ModEisAnzeigeHelper::renderTree($items); ?>
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</div>
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<!-- Rechts: Vorschau-Bereich -->
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<div id="pdf-preview"></div>
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</div>
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<!-- Interaktivität: Vorschau, Toggle, Buttons -->
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<script>
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document.addEventListener('DOMContentLoaded', function() {
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// (1) Verzeichnisse auf-/zuklappen per Klick
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document.querySelectorAll('.pdf-tree .toggle').forEach(function(toggle) {
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toggle.addEventListener('click', function() {
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var li = this.parentNode;
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var ul = li.querySelector('ul');
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if (!ul) return;
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if (ul.style.display === 'block') {
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ul.style.display = 'none'; this.textContent = '▶';
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} else {
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ul.style.display = 'block'; this.textContent = '▼';
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}
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});
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});
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// (2) Alle ausklappen
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document.getElementById('expand-all').addEventListener('click', function() {
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document.querySelectorAll('.pdf-tree ul').forEach(function(ul) {
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ul.style.display = 'block';
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});
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document.querySelectorAll('.pdf-tree .toggle').forEach(function(toggle) {
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toggle.textContent = '▼';
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});
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});
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// (3) Alle einklappen
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document.getElementById('collapse-all').addEventListener('click', function() {
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document.querySelectorAll('.pdf-tree ul').forEach(function(ul) {
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ul.style.display = 'none';
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});
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document.querySelectorAll('.pdf-tree .toggle').forEach(function(toggle) {
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toggle.textContent = '▶';
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});
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});
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// (4) Vorschau anzeigen beim Klick
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var preview = document.getElementById('pdf-preview');
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document.querySelectorAll('.pdf-tree .file-link').forEach(function(link) {
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link.addEventListener('click', function(e) {
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e.preventDefault();
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preview.style.display = 'block';
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preview.innerHTML = '<iframe src="' + this.href + '"></iframe>';
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});
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});
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});
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</script>
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