[locationinfo] Add web application manifest

1 files changed, 46 insertions, 0 deletions

diff --git a/modules-available/locationinfo/api.inc.php b/modules-available/locationinfo/api.inc.php
index 24919ba1..ef462d83 100644
--- a/modules-available/locationinfo/api.inc.php
+++ b/modules-available/locationinfo/api.inc.php
@@ -37,6 +37,8 @@ function HandleParameters()
 	} elseif ($get === "calendar") {
 		$locationIds = LocationInfo::getLocationsOr404($uuid);
 		$output = LocationInfo::getCalendar($locationIds);
+	} elseif ($get === "manifest") {
+		$output = generateManifest($uuid);
 	}
 	if ($output !== null) {
 		Header('Content-Type: application/json; charset=utf-8');
@@ -152,3 +154,47 @@ function findLocations(array $locations, array $idList): array
 	}
 	return $ret;
 }
+
+
+/**
+ * Generates a web application manifest for a panel.
+ *
+ * @param string $uuid The UUID of the panel.
+ * @return array The generated manifest file data.
+ */
+function generateManifest(string $uuid): array
+{
+	$row = Database::queryFirst("SELECT panelname FROM locationinfo_panel WHERE paneluuid = :paneluuid",
+		['paneluuid' => $uuid]);
+	if ($row === false)
+		return ['error' => 'Not found'];
+	$data = [
+		"name" => $row['panelname'],
+		"short_name" => $row['panelname'],
+		"start_url" => "/panel/$uuid",
+		"display_override" => [
+			"fullscreen",
+			"standalone",
+			"tabbed",
+			"minimal-ui"
+		],
+		"display" => "fullscreen",
+		"icons" => [
+			[
+				"src" => "/panel/style/icon.svg",
+				"sizes" => "any",
+				"type" => "image/svg+xml"
+			]
+		],
+	];
+	foreach (glob('style/icon*.png', GLOB_NOSORT) as $file) {
+		if (!preg_match('/icon(\d+)\.png$/', $file, $m))
+			continue;
+		$data['icons'][] = [
+			"src" => "/panel/$file",
+			"sizes" => "${m[1]}x${m[1]}",
+			"type" => "image/png",
+		];
+	}
+	return $data;
+}
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