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1 | <?php |
2 | ||
3 | declare(strict_types=1); | |
4 | ||
5 | namespace Shaarli\Front\Controller; | |
6 | ||
7 | use Slim\Http\Request; | |
8 | use Slim\Http\Response; | |
9 | ||
10 | /** | |
11 | * Class TagCloud | |
12 | * | |
13 | * Slim controller used to render the tag cloud page. | |
14 | * | |
15 | * @package Front\Controller | |
16 | */ | |
17 | class TagCloudController extends ShaarliController | |
18 | { | |
19 | public function index(Request $request, Response $response): Response | |
20 | { | |
21 | if ($this->container->loginManager->isLoggedIn() === true) { | |
22 | $visibility = $this->container->sessionManager->getSessionParameter('visibility'); | |
23 | } | |
24 | ||
25 | $searchTags = $request->getQueryParam('searchtags'); | |
26 | $filteringTags = $searchTags !== null ? explode(' ', $searchTags) : []; | |
27 | ||
28 | $tags = $this->container->bookmarkService->bookmarksCountPerTag($filteringTags, $visibility ?? null); | |
29 | ||
30 | // We sort tags alphabetically, then choose a font size according to count. | |
31 | // First, find max value. | |
32 | $maxCount = 0; | |
33 | foreach ($tags as $count) { | |
34 | $maxCount = max($maxCount, $count); | |
35 | } | |
36 | ||
37 | alphabetical_sort($tags, false, true); | |
38 | ||
39 | $logMaxCount = $maxCount > 1 ? log($maxCount, 30) : 1; | |
40 | $tagList = []; | |
41 | foreach ($tags as $key => $value) { | |
42 | if (in_array($key, $filteringTags)) { | |
43 | continue; | |
44 | } | |
45 | // Tag font size scaling: | |
46 | // default 15 and 30 logarithm bases affect scaling, | |
47 | // 2.2 and 0.8 are arbitrary font sizes in em. | |
48 | $size = log($value, 15) / $logMaxCount * 2.2 + 0.8; | |
49 | $tagList[$key] = [ | |
50 | 'count' => $value, | |
51 | 'size' => number_format($size, 2, '.', ''), | |
52 | ]; | |
53 | } | |
54 | ||
55 | $searchTags = implode(' ', escape($filteringTags)); | |
56 | $data = [ | |
57 | 'search_tags' => $searchTags, | |
58 | 'tags' => $tagList, | |
59 | ]; | |
60 | $data = $this->executeHooks($data); | |
61 | foreach ($data as $key => $value) { | |
62 | $this->assignView($key, $value); | |
63 | } | |
64 | ||
65 | $searchTags = !empty($searchTags) ? $searchTags .' - ' : ''; | |
66 | $this->assignView( | |
67 | 'pagetitle', | |
68 | $searchTags. t('Tag cloud') .' - '. $this->container->conf->get('general.title', 'Shaarli') | |
69 | ); | |
70 | ||
71 | return $response->write($this->render('tag.cloud')); | |
72 | } | |
73 | ||
74 | /** | |
75 | * @param mixed[] $data Template data | |
76 | * | |
77 | * @return mixed[] Template data after active plugins render_picwall hook execution. | |
78 | */ | |
79 | protected function executeHooks(array $data): array | |
80 | { | |
81 | $this->container->pluginManager->executeHooks( | |
82 | 'render_tagcloud', | |
83 | $data, | |
84 | ['loggedin' => $this->container->loginManager->isLoggedIn()] | |
85 | ); | |
86 | ||
87 | return $data; | |
88 | } | |
89 | } |