first commit

Author: MufengNiu

Module.php

@@ -0,0 +1,116 @@
+<?php
+
+namespace NodeGraph;
+
+use Omeka\Module\AbstractModule;
+use Laminas\Mvc\MvcEvent;
+use Laminas\EventManager\SharedEventManagerInterface;
+use Omeka\Entity\SitePage;
+use Omeka\Api\Representation\SitePageRepresentation;
+use Laminas\EventManager\Event;
+
+
+class Module extends AbstractModule
+{
+
+    public function getConfig(): array
+    {
+        return include __DIR__ . '/config/module.config.php';
+    }
+
+
+    public function onBootstrap(MvcEvent $event): void
+    {
+        // IMPORTANT: ensure base class runs (this is what normally calls attachListeners()).
+        parent::onBootstrap($event);
+
+        $services = $event->getApplication()->getServiceManager();
+        $viewHelperManager = $services->get('ViewHelperManager');
+        $headScript = $viewHelperManager->get('headScript');
+        $headLink = $viewHelperManager->get('headLink');
+
+        //Sigma js
+        $headScript
+            ->appendFile('https://cdnjs.cloudflare.com/ajax/libs/graphology/0.24.0/graphology.umd.min.js')
+            ->appendFile('https://cdn.jsdelivr.net/npm/graphology-library@0.8.0/dist/graphology-library.min.js')
+            ->appendFile('https://cdnjs.cloudflare.com/ajax/libs/sigma.js/3.0.2/sigma.min.js');
+    }
+
+    public function attachListeners(SharedEventManagerInterface $sem): void
+    {
+        // After API save (create/update) of site pages, queue builds.
+        $sem->attach('*', 'api.create.post', [$this, 'onPageSaved']);
+        $sem->attach('*', 'api.update.post', [$this, 'onPageSaved']);
+    }
+
+
+    public function onPageSaved(Event $event): void
+    {
+        $services = $this->getServiceLocator();
+        $response = $event->getParam('response');
+        $content  = $response ? $response->getContent() : null;
+
+        $pages = is_array($content) ? $content : ($content ? [$content] : []);
+        $adapter = $services->get('Omeka\ApiAdapterManager')->get('site_pages');
+        $dispatcher = $services->get(\Omeka\Job\Dispatcher::class);
+        $conn       = $services->get('Omeka\Connection');
+
+        foreach ($pages as $page) {
+            if ($page instanceof SitePage) {
+                $page = $adapter->getRepresentation($page);
+            }
+            if (!$page instanceof SitePageRepresentation) {
+                continue;
+            }
+
+            foreach ($page->blocks() as $blockRep) {
+                // Only Node graph block
+                if ($blockRep->layout() !== 'Node Graph') {
+                    continue;
+                }
+
+                $data         = $blockRep->data();
+                $cacheEnabled = !empty($data['cache_result']);
+                if (!$cacheEnabled) {
+                    continue;
+                }
+
+                // If caching is on, compute hash of inputs that affect output
+                $hash    = sha1(json_encode($data));
+                $blockId = (int) $blockRep->id();
+
+                // If cache already exist, delete and rebuild
+                $conn->executeStatement(
+                    'DELETE FROM nodegraph_cache WHERE block_id = ? AND hash = ?',
+                    [$blockId, $hash]
+                );
+
+                // Queue job to (re)build the cache
+                $dispatcher->dispatch(\NodeGraph\Job\BuildGraph::class, [
+                    'block_id' => $blockId,
+                    'hash'     => $hash,
+                    'page_id'  => $page->id(),
+                ]);
+            }
+        }
+    }
+
+    public function install($serviceLocator)
+    {
+        $conn = $serviceLocator->get('Omeka\Connection');
+        $conn->executeStatement('
+        CREATE TABLE IF NOT EXISTS nodegraph_cache (
+          block_id INT NOT NULL PRIMARY KEY,
+          hash     VARCHAR(40) NOT NULL,
+          payload  LONGTEXT NOT NULL,
+          updated  DATETIME NOT NULL
+        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+    ');
+    }
+
+    public function uninstall($serviceLocator)
+    {
+        $conn = $serviceLocator->get('Omeka\Connection');
+        $conn->executeStatement('DROP TABLE IF EXISTS nodegraph_cache;');
+    }
+}

README.md

@@ -0,0 +1 @@
+Omeka S version used for testing: 4.1.1

asset/css/nodegraph.css

@@ -0,0 +1,59 @@
+/* Network graph */
+#network-container {
+    width: 100%;
+    height: 100%;
+    border: 2px solid black;
+    background-color: white;
+    position: relative;
+}
+
+#network-tooltip {
+    position: absolute;
+    background-color: #fff;
+    max-width: 200px;
+    word-wrap: break-word;
+    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
+    border-radius: 5px;
+    padding: 10px;
+    font-size: 14px;
+    pointer-events: none;
+    z-index: 1000;
+    display: none;
+}
+
+#network-tooltip p {
+    margin-top: 5px;
+    margin-bottom: 5px;
+    font-size: 15px;
+}
+
+#network-controls {
+    position: absolute;
+    left: 10px;
+    bottom: 10px;
+    z-index: 100;
+}
+
+#legendDiv {
+    position: absolute;
+    /* max-width: 20%;
+    max-height: 25%; */
+    padding: 10px;
+    right: 10px;
+    bottom: 10px;
+    z-index: 100;
+    box-shadow: 0 1px 10px rgba(0, 0, 0, 0.4);
+    border-radius: 10px;
+    background-color: white;
+}
+
+.network-button {
+    display: block;
+    margin-bottom: 10px;
+    width: 50px;
+    height: 50px;
+    background-color: #fff;
+    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
+    border-radius: 5px;
+    cursor: pointer;
+}

asset/image/sigma.js/exit-full-screen.svg

@@ -0,0 +1,26 @@
+<?php
+
+namespace NodeGraph;
+
+return [
+    'view_manager' => [
+        'template_path_stack' => [dirname(__DIR__) . '/view'],
+    ],
+    'block_layouts' => [
+        'invokables' => [
+            'Node Graph' => \NodeGraph\Site\BlockLayout\NodeGraphBlock::class,
+        ],
+    ],
+    'form_elements' => [
+        'factories' => [
+            \NodeGraph\Form\Fieldset\GroupByFieldset::class => \Laminas\ServiceManager\Factory\InvokableFactory::class,
+            \NodeGraph\Form\Fieldset\NodeColorsFieldset::class     => \Laminas\ServiceManager\Factory\InvokableFactory::class,
+            \NodeGraph\Form\Fieldset\NodeColorPairFieldset::class  => \Laminas\ServiceManager\Factory\InvokableFactory::class,
+            \NodeGraph\Form\Fieldset\NodeIconsFieldset::class    => \Laminas\ServiceManager\Factory\InvokableFactory::class,
+            \NodeGraph\Form\Fieldset\NodeIconPairFieldset::class => \Laminas\ServiceManager\Factory\InvokableFactory::class,
+        ],
+    ],
+];
+
+
+// To do: Node colors and icons if preset. remove button wont work

asset/image/sigma.js/full-screen.svg

@@ -0,0 +1,5 @@
+[info]
+name = "Node Graph"
+version = "1.0.0"
+author = "Systemik"
+description = "TBD"